Method for preparing special low-cost fertilizer for green tea

Abstract

The invention discloses a method for preparing a special low-cost fertilizer for green tea. The method comprises the following steps: uniformly mixing ammonium nitrate, potassium sulfate, guano, EDTA iron chelate, manganese sulfate, molybdic acid, copper sulfate, borax and water, adding a sodium hydroxide solution with the concentration of 0.5wt% to 1.2wt% into the system so as to adjust the pH value of the system to 7.1 to 7.5, carrying out atomization, then, spraying the atomized system to the surface of silicon dioxide by a peristaltic pump for spray granulation, so as to obtain first coated granules; uniformly mixing plant ash, rabbit manure, bean dregs, marigolds, water and a compound-bacterium preparation, and carrying out sealed standing, so as to obtain a prefabricated material; subjecting hydrogenated castor oil and calcium palmitate to mixed fusion, adding the first coated granules, the prefabricated material into the fused mixture, carrying out mixing and stirring, and carrying out extruding granulation, so as to obtain second coated granules; and fusing hydrogenated palm oil, adding modified corn starch, activated carbon, kaolin, calcined argil and the second coated granules into the fused hydrogenated palm oil, carrying out uniform mixing, and then, carrying out spray granulation, thereby obtaining the special low-cost fertilizer for the green tea.

Description

technical field [0001] The invention relates to the technical field of green tea fertilizer, in particular to a method for preparing a low-cost special fertilizer for green tea. Background technique [0002] Green tea is made without fermentation, which retains the natural substances of fresh leaves, and contains more nutrients such as tea polyphenols, catechins, chlorophyll, caffeine, amino acids, and vitamins. These natural nutrients in green tea have special effects on anti-aging, anti-cancer, anti-cancer, sterilization, anti-inflammatory, etc., which are beyond the reach of other teas. The color of dry tea and the tea paste after brewing and the bottom of the leaves are mainly green, so it is called green tea. At present, the fertilizer used to grow green tea is mainly urea. The ratio of nitrogen, phosphorus, and potassium in this fertilizer does not meet the ratio of green tea absorbed from the soil, which will cause a large amount of elements to remain in the soil and...

AI Technical Summary

Problems solved by technology

At present, the fertilizer used for planting green tea is mainly urea. The ratio of nitrogen, phosphorus, and potassium in this fertilizer does not meet the ratio that green tea absorbs from the soil, which will cause a large amount of elements to remain in the soil and pollute the soil.

Due to the long-term use of chemical fertilizers in the traditional green tea planting method, the green tea land is compacted and the fertility is reduced, which leads to a serious decline in the output and quality of green tea.